The edge length of the cube is 0.4
Alright, lets get started.
Please take a look at the diagram attached.
The reference angle of 75 will be 75
As it is mentioned that the angle intersects the unit circle means r = 1
So, finding cos
cos 75 = ![\frac{X}{r}](https://tex.z-dn.net/?f=%5Cfrac%7BX%7D%7Br%7D)
cos 75 = ![\frac{0.259}{1}](https://tex.z-dn.net/?f=%5Cfrac%7B0.259%7D%7B1%7D)
cos 75 = 0.259 : Answer
Hope it will help :)
We cannot help you with that, sorry
Yes, as one half or 1/2 is also 10/20. 11/20 is greater than half by a 10% margin.